In living organisms, lipids mainly function as : a. sources of stored energy and transmitters of genetic information b. transmitters of genetic information and catalysts of chemical reactions c. sources of stored energy and components of cellular membranes d. catalysts of chemical reactions and components of cellular membranes

For the strategies below, decide whether they are best described as demand-side solutions or supply-side solutions to meeting human needs for fresh water. remember that a demand-side solution reduces demand for fresh water, whereas a supply-side solution increases the supply of fresh water. (a) damming a river to create a reservoir (b) desalinating seawater (c) a nation invading a neighboring country to access their rivers (d) raising water prices for consumers and businesses (e) providing tax breaks for companies that use less water (f) replacing inefficient irrigation with more-efficient drip irrigation to grow crops (g) requiring low-flow showerheads in all new homes